Abandoned mines in Yavapai County, Arizona

1. Mine openings

   shafts, adits, air shafts, portals and vertical openings: the ways into underground workings
   1,348 37.6%
2. Prospect pits and trenches

   shallow exploration diggings that never became a mine
   1,581 44.1%
3. Mines and surface workings

   labelled mines, open pits, strip mines, placer and hydraulic workings
   266 7.4%
4. Quarries, gravel and borrow pits

   construction-material and industrial-mineral extraction
   252 7.0%
5. Dumps, tailings, spoil and gob

   what mining left above ground
   138 3.8%

…and 56 more named features not listed here.

A name is the label printed beside the symbol on the map. "First mapped" is the earliest topographic edition that shows the symbol, which bounds the feature's age from above; it is not the date it was worked. Unnamed features (most prospect pits, adits and shafts carry no label) are in the counts above but not this list.

1. 10X

   Surface metal/non-metal · Carson Construction · MSHA ID 0203208
   Abandoned 2010-03-17
2. 150-2 Burnett

   Surface metal/non-metal · Burnett Construction Company · MSHA ID 0202419
   Abandoned 1988-02-09
3. 169 MATERIALS PIT

   Surface metal/non-metal · Antelope Meadows Materials · MSHA ID 0202820
   Abandoned 2000-03-30
4. A R A MATERIALS

   Surface metal/non-metal · A R A MATERIALS · MSHA ID 0203186
   Abandoned 2009-03-16
5. Acquisition Mine

   Underground metal/non-metal · Acquisition Mines Ltd · MSHA ID 0202069
   Abandoned 1982-11-01
6. Aguila Facility

   Surface metal/non-metal · Cactus Mining LLC · MSHA ID 0203394
   Abandoned 2020-02-18
7. Alvarado

   Underground metal/non-metal · Mco Mine Service · MSHA ID 0202495
   Abandoned 1991-08-07
8. Alvarado Mine

   Underground metal/non-metal · Pope Mining Inc · MSHA ID 0201991
   Abandoned 1981-03-24
9. Alvarado Mine

   Surface metal/non-metal · Southwest Exploration Research & Development LLC · MSHA ID 0203286
   Abandoned 2013-10-23
10. Antelope Placer Mine

    Surface metal/non-metal · Proaz Resources Corp · MSHA ID 0202036
    Abandoned 1982-05-28
11. ANTONLINI ANTELOPE & RED QUARRY

    Surface metal/non-metal · Dunbar Stone Company Inc · MSHA ID 0202787
    Abandoned 2002-07-16
12. APACHE QUARRIES

    Surface metal/non-metal · Roy Anderson Stone Company · MSHA ID 0202021
    Abandoned 2007-03-02
13. Arizona Tufa Mining Corporation

    Surface metal/non-metal · Arizona Tufa Mining Corp · MSHA ID 0201982
    Abandoned 1987-09-15
14. Ash Creek Pit

    Surface metal/non-metal · A J Gilbert Construction Company · MSHA ID 0201850
    Abandoned 1978-10-18
15. Ash Fork Pit

    Facility metal/non-metal · Wheeler Construction Inc · MSHA ID 0202600
    Abandoned 1995-06-30
16. B&B MATERIALS

    Surface metal/non-metal · B & B Materials · MSHA ID 0202256
    Abandoned 2005-02-04
17. Bagdad Pit

    Surface metal/non-metal · Arizona Pumice · MSHA ID 0201859
    Abandoned 1978-07-19
18. Beaver Creek Mine

    Surface metal/non-metal · Rimrock Excavating & Materials · MSHA ID 0202386
    Abandoned 1993-09-13
19. Beaver Head Flat Pit

    Surface metal/non-metal · Yavapai County Highway Department · MSHA ID 0201781
    Abandoned 1979-07-16
20. Bedrock Aggregate

    Surface metal/non-metal · Bedrock Aggregate · MSHA ID 0201333
    Abandoned 1978-08-23
21. Bedrock Portable #1

    Surface metal/non-metal · Bedrock Landscape Materials & Supplies LLC · MSHA ID 0202947
    Abandoned 2009-04-13
22. Bedrock Portable #2

    Surface metal/non-metal · Bedrock Landscape Materials & Supplies LLC · MSHA ID 0203115
    Abandoned 2007-01-16
23. BELL RANCH QUARRY #1

    Surface metal/non-metal · Bell Ranch Quarry Inc · MSHA ID 0202828
    Abandoned 2000-12-08
24. Bell Ranch Quarry, Inc.

    Surface metal/non-metal · Bell Ranch Quarry, Inc. · MSHA ID 0203057
    Abandoned 2005-05-26
25. BENSCH RANCH

    Surface metal/non-metal · Ashrock Llc · MSHA ID 0202915
    Abandoned 2002-06-03
26. Big Bug Mines

    Surface metal/non-metal · Big Bug Mines Inc · MSHA ID 0201965
    Abandoned 1981-06-30
27. Big Bug Pit

    Surface metal/non-metal · Earth Products Inc · MSHA ID 0201948
    Abandoned 1980-01-09
28. BITTER CREEK MATERIALS

    Surface metal/non-metal · Bitter Creek Materials · MSHA ID 0202922
    Abandoned 2003-12-10
29. Black Canyon Mica Project

    Surface metal/non-metal · Azco Mica Inc · MSHA ID 0202835
    Abandoned 2002-12-09
30. Black Cat

    Surface metal/non-metal · American Sandstone · MSHA ID 0202708
    Abandoned 2008-06-17
31. BLAND MINE #22

    Surface metal/non-metal · Franklin Burns · MSHA ID 0202916
    Abandoned 2002-11-14
32. Blind Indian

    Surface metal/non-metal · Texona Mining Company Inc · MSHA ID 0202088
    Abandoned 1983-02-22
33. Blue Bell Mine

    Surface metal/non-metal · Paterno Stone Co. · MSHA ID 0203168
    Abandoned 2011-03-15
34. Blue Bell Mine

    Surface metal/non-metal · RMC Mining Deveopment · MSHA ID 0203443
    Abandoned 2023-02-07
35. BLUE BELLS QUARRY

    Surface metal/non-metal · Roy Anderson Stone Company · MSHA ID 0202636
    Abandoned 2005-07-18
36. Boaz Mine

    Surface metal/non-metal · Boaz Mining Inc · MSHA ID 0202059
    Abandoned 1982-10-14
37. Box Canyon Mine

    Surface metal/non-metal · Ron Barnes & Associates · MSHA ID 0202263
    Abandoned 1985-09-03
38. Bradshaw Decorative Rock

    Surface metal/non-metal · Paterno Stone Co. · MSHA ID 0203175
    Abandoned 2010-05-24
39. Bradshaw Mountain Redi-Mix Ii

    Surface metal/non-metal · Bradshaw Mountain Redi-Mix Ii · MSHA ID 0201060
    Abandoned 1989-01-18
40. Bruce Mine

    Underground metal/non-metal · Cyprus Bruce Copper & Zinc Company · MSHA ID 0200141
    Abandoned 1978-07-19
41. BUNKER QUARRY

    Surface metal/non-metal · American Sandstone · MSHA ID 0202822
    Abandoned 2000-10-05
42. Button Mine

    Underground metal/non-metal · Alpine Partners Inc · MSHA ID 0202151
    Abandoned 1983-06-28
43. Camp Verde Pit & Plant

    Surface metal/non-metal · Superior Companies · MSHA ID 0200626
    Abandoned 1990-05-07
44. Carter Mine

    Surface metal/non-metal · Placer Development Inc · MSHA ID 0202147
    Abandoned 1984-04-02
45. Cat Pause Mine

    Surface metal/non-metal · Gulf American Mining Enterprises Inc · MSHA ID 0201595
    Abandoned 1978-11-21
46. CEDAR RAPIDS JAW 2436

    Surface metal/non-metal · Salt River Sand & Rock · MSHA ID 0202788
    Abandoned 2003-03-25
47. CEMEX - CAMP VERDE

    Surface metal/non-metal · CEMEX Construction Materials South, LLC · MSHA ID 0202606
    Abandoned 2024-04-10
48. CEMEX - MAGUIREVILLE

    Surface metal/non-metal · CEMEX Construction Materials South LLC · MSHA ID 0203179
    Abandoned 2010-03-18
49. Century Materials Portable Plant 1

    Surface metal/non-metal · Century Materials Inc · MSHA ID 0201261
    Abandoned 1993-11-22
50. Charter Materials Plant 200

    Surface metal/non-metal · Charter Materials LLC · MSHA ID 0203065
    Abandoned 2008-05-06
51. Charter Materials Plant 300

    Surface metal/non-metal · Charter Materials LLC · MSHA ID 0203064
    Abandoned 2006-05-09
52. Cherry Creek Pit

    Surface metal/non-metal · Yavapai County Highway Department · MSHA ID 0201443
    Abandoned 1979-07-16
53. Cherry Pit

    Surface metal/non-metal · Yavapai County · MSHA ID 0202302
    Abandoned 1993-05-19
54. CHI CHI

    Surface metal/non-metal · Harley Gray Stone Company · MSHA ID 0202719
    Abandoned 2002-07-19
55. Chocolate Royale

    Surface metal/non-metal · Oliver Stone w/a Twist · MSHA ID 0202968
    Abandoned 2003-09-02
56. CLARK SAND & GRAVEL

    Surface metal/non-metal · Clark Excavating Inc · MSHA ID 0202908
    Abandoned 2002-06-20
57. Clarkdale Metals Corp

    Facility metal/non-metal · Clarkdale Metals Corp · MSHA ID 0203257
    Abandoned 2010-09-16
58. Clarkdale Pit & Plant

    Surface metal/non-metal · Superior Companies · MSHA ID 0201911
    Abandoned 1983-06-17
59. Cloverleaf Pit

    Surface metal/non-metal · Mulcaire & Mongini Excavating Inc · MSHA ID 0202312
    Abandoned 1987-05-11
60. Columbia Gold

    Underground metal/non-metal · Columbia Gold Production Company Inc · MSHA ID 0202425
    Abandoned 1989-07-12
61. Columbia Gold

    Surface metal/non-metal · Columbia Gold Prod Company Inc · MSHA ID 0202492
    Abandoned 1989-09-13
62. Congress Consolidated Gold Mining Corp L

    Surface metal/non-metal · Congress Consolidated Gold Mining Corp Ltd · MSHA ID 0201734
    Abandoned 1982-05-13
63. Congress Millsite

    Facility metal/non-metal · Republic Goldfields Corp · MSHA ID 0202532
    Abandoned 1993-11-15
64. Congress Mine

    Underground metal/non-metal · Republic Goldfields Corp · MSHA ID 0202340
    Abandoned 1993-06-21
65. Congress Mine

    Surface metal/non-metal · US American Resources, Inc. · MSHA ID 0203164
    Abandoned 2007-09-28
66. Congress Mine

    Surface metal/non-metal · Mining Global, Inc. · MSHA ID 0203340
    Abandoned 2014-10-03
67. Copper Queen

    Underground metal/non-metal · Conoco Inc · MSHA ID 0201967
    Abandoned 1981-01-09
68. Copper Queen

    Surface metal/non-metal · Triple R Stone · MSHA ID 0202935
    Abandoned 2011-03-15
69. Cordes Pit

    Surface metal/non-metal · Ledcor CMI, Inc. · MSHA ID 0203292
    Abandoned 2012-11-15
70. Crown King

    Surface metal/non-metal · Dore Metals & Mining Corp · MSHA ID 0202009
    Abandoned 1983-08-09
71. CRUICE PIT

    Surface metal/non-metal · Greystone Llc · MSHA ID 0202802
    Abandoned 1999-10-20
72. Crusher

    Surface metal/non-metal · Pine Mountain Crushing L.L.C. · MSHA ID 0203151
    Abandoned 2009-06-18
73. Crusher #1

    Surface metal/non-metal · ABC Materials · MSHA ID 0202953
    Abandoned 2005-10-01
74. Crusher #3

    Surface metal/non-metal · Granite Express LLC · MSHA ID 0203403
    Abandoned 2021-01-26
75. Crushing And Screening Plant

    Surface metal/non-metal · Valley Concrete & Materials Inc · MSHA ID 0201653
    Abandoned 1991-04-17
76. CVS Mine

    Surface metal/non-metal · Savage Development Inc · MSHA ID 0203374
    Abandoned 2017-05-09
77. Davis Dunkirk

    Underground metal/non-metal · Enterprise Company · MSHA ID 0202073
    Abandoned 1983-11-16
78. Defiance Load Mining Claim

    Surface metal/non-metal · Luckys Rock Farm LLC · MSHA ID 0203468
    Abandoned 2025-03-10
79. Del Rio

    Surface metal/non-metal · William Brush & Sons Inc · MSHA ID 0202417
    Abandoned 1988-08-22
80. DEWEY MINE

    Surface metal/non-metal · Northern Arizona Materials Development · MSHA ID 0202779
    Abandoned 1999-04-22
81. Dewey Pit

    Surface metal/non-metal · Earth Products Inc · MSHA ID 0201949
    Abandoned 1984-07-17
82. Dewey Pit

    Surface metal/non-metal · Henrickson Enterprises LLC · MSHA ID 0202988
    Abandoned 2007-08-30
83. Dewey Pit

    Surface metal/non-metal · Flintstone Industries Inc. · MSHA ID 0203294
    Abandoned 2024-05-06
84. Dewey Pit & Plant

    Surface metal/non-metal · Superior Companies · MSHA ID 0202474
    Abandoned 1989-09-11
85. DEWEY PORTABLE (2)

    Surface metal/non-metal · EARTH RESOURCES CORPORATION · MSHA ID 0203492
    Abandoned 2026-08-05
86. DEWEY ROCK AND MAT

    Surface metal/non-metal · Wegge Septic Inc · MSHA ID 0202637
    Abandoned 1997-06-10
87. Docie Pit

    Surface metal/non-metal · Granite Mountain Materials · MSHA ID 0203088
    Abandoned 2021-05-05
88. Downstream Mining

    Surface metal/non-metal · Downstream Mining · MSHA ID 0202427
    Abandoned 1991-12-20
89. Drake Iron Ore

    Surface metal/non-metal · Drake Materials · MSHA ID 0203299
    Abandoned 2018-05-14
90. Drake Limestone Pit (Mill)

    Surface metal/non-metal · Superior Companies · MSHA ID 0201420
    Abandoned 1980-03-31
91. Drake Ore Mine-south

    Surface metal/non-metal · D & O Crane · MSHA ID 0203416
    Abandoned 2019-06-27
92. El Jay Sand & Gravel

    Surface metal/non-metal · Superior Companies · MSHA ID 0201413
    Abandoned 1979-02-27
93. El-Jay Crusher No 2

    Surface metal/non-metal · Material Supply Corp Inc · MSHA ID 0201988
    Abandoned 1984-06-25
94. Feather Mountain Material

    Surface metal/non-metal · Feather Mountain Material · MSHA ID 0203128
    Abandoned 2006-07-20
95. Fisher Industries Plant #29

    Surface metal/non-metal · Fisher Sand & Gravel Company · MSHA ID 3901397
    Abandoned 2023-12-21
96. Fry Bar Claims

    Surface metal/non-metal · Mineral Recovery Inc · MSHA ID 0202150
    Abandoned 1983-08-09
97. George Washington Mine & Mill

    Underground metal/non-metal · Telstar Resource Corp · MSHA ID 0202164
    Abandoned 1984-02-29
98. Geronimo

    Surface metal/non-metal · American Sandstone · MSHA ID 0203097
    Abandoned 2007-05-14
99. GERONIMO QUARRY

    Surface metal/non-metal · American Sandstone · MSHA ID 0202823
    Abandoned 2002-07-16
100. Gimez (Arizona) Inc.

     Surface metal/non-metal · Gimez (Arizona) Inc. · MSHA ID 0203067
     Abandoned 2007-08-15
101. Gladiator

     Underground metal/non-metal · Nor-Quest Arizona Inc · MSHA ID 0202207
     Abandoned 1989-05-31
102. Gladiator Mine

     Underground metal/non-metal · New Westwin Arizona Inc · MSHA ID 0202659
     Abandoned 1996-06-27
103. Gleed Quarry

     Surface metal/non-metal · Seel and Sons · MSHA ID 0203301
     Abandoned 2012-07-09
104. Gold 1 Mine

     Surface metal/non-metal · Monarch Mining Company · MSHA ID 0202085
     Abandoned 1983-02-22
105. Gold Basin

     Surface metal/non-metal · Pine Creek Mining, Inc. · MSHA ID 0203125
     Abandoned 2016-02-09
106. Gold Button Mine

     Surface metal/non-metal · Gold Button Inc · MSHA ID 0201955
     Abandoned 1981-03-02
107. Gold Button Mine

     Underground metal/non-metal · Bradshaw Mining · MSHA ID 0202630
     Abandoned 1996-02-06
108. Golden Buckskin

     Surface metal/non-metal · Carlow Investors, LLC · MSHA ID 0202733
     Abandoned 2010-07-06
109. Golden Glade

     Surface metal/non-metal · Skull Valley Ventures · MSHA ID 0202365
     Abandoned 1989-05-30
110. Got Rock 3

     Surface metal/non-metal · J & D Excavators Inc · MSHA ID 0203206
     Abandoned 2009-06-12
111. GRANITE CREEK PIT

     Surface metal/non-metal · Chino Valley Materials · MSHA ID 0202794
     Abandoned 2004-05-20
112. Hackberry

     Surface metal/non-metal · Alpha Gold Ltd · MSHA ID 0202156
     Abandoned 1984-09-18
113. Henrietta Group Of Mines

     Underground metal/non-metal · Crandall Et Al · MSHA ID 0202041
     Abandoned 1981-12-11
114. High-12

     Surface metal/non-metal · Tracon Mining Corp · MSHA ID 0202165
     Abandoned 1985-02-20
115. Homestead Mine

     Surface metal/non-metal · Gold Star Exploration Inc · MSHA ID 0202265
     Abandoned 1988-07-20
116. Honset Claim

     Surface metal/non-metal · Goldenrod LLC · MSHA ID 0203382
     Abandoned 2018-05-16
117. Horseshoe Bar Mine

     Surface metal/non-metal · Dmex International · MSHA ID 0202020
     Abandoned 1981-06-03
118. HOWARD GRAY STONE

     Surface metal/non-metal · Howard Gray Stone · MSHA ID 0202750
     Abandoned 2001-09-30
119. Humbug Mine

     Underground metal/non-metal · Western States Resources Inc · MSHA ID 0202615
     Abandoned 1995-04-05
120. Impact Crusher (Portable)

     Surface metal/non-metal · Sundt Corp · MSHA ID 0202518
     Abandoned 1992-07-24
121. Independence Mine

     Surface metal/non-metal · Teddy Inc · MSHA ID 0202076
     Abandoned 1983-02-22
122. IRON CHANCELLAR

     Underground metal/non-metal · Birch Development Company · MSHA ID 0202838
     Abandoned 2000-04-24
123. Jagged Tooth Pit #1

     Surface metal/non-metal · Arizona Aggregate Removers · MSHA ID 0203026
     Abandoned 2004-10-08
124. Kachina Plant #4

     Surface metal/non-metal · Kachina Redi-Mix · MSHA ID 0202142
     Abandoned 1987-07-31
125. Kell-Webb

     Surface metal/non-metal · Worldwide Mineral Inc · MSHA ID 0202042
     Abandoned 1983-02-10
126. Kirkland Tuffa Quarry

     Surface metal/non-metal · Unzicker & Wells Drilling Co Inc · MSHA ID 0201910
     Abandoned 1979-10-25
127. L J Portable

     Surface metal/non-metal · Pahoco Corp · MSHA ID 0202395
     Abandoned 1989-04-04
128. Last Placer

     Surface metal/non-metal · Rainbow Mining · MSHA ID 0202494
     Abandoned 1990-04-16
129. Leviathan Claims

     Surface metal/non-metal · Los Suertes Mining Corp · MSHA ID 0202107
     Abandoned 1984-07-16
130. Little Giant

     Underground metal/non-metal · Goldstake Explorations (Sd) Inc · MSHA ID 0202568
     Abandoned 1993-03-25
131. Little Giant

     Surface metal/non-metal · US American Resources, Inc. · MSHA ID 0203104
     Abandoned 2007-03-31
132. Little Margie

     Surface metal/non-metal · Little Margie Mines Inc · MSHA ID 0202102
     Abandoned 1983-03-14
133. Little Pan Mine

     Surface metal/non-metal · Arizona Mining Associates · MSHA ID 0201996
     Abandoned 1981-04-09
134. Lizard Group

     Surface metal/non-metal · Stoneworld · MSHA ID 0202707
     Abandoned 2016-10-03
135. LONE STAR MINE

     Surface metal/non-metal · Dewey Stone Supply · MSHA ID 0202781
     Abandoned 2002-07-16
136. Look Out Mine

     Underground metal/non-metal · Look Out Mining Co Inc · MSHA ID 0201759
     Abandoned 1978-05-12
137. Lost Lead Placer #2

     Surface metal/non-metal · Lost Lead Placer #2 · MSHA ID 0202122
     Abandoned 1983-11-16
138. Lucky Charm & Silver King Group Ltd

     Underground metal/non-metal · Lucky Charm & Silver King Group Ltd · MSHA ID 0202220
     Abandoned 1987-09-01
139. Lyle Mine

     Surface metal/non-metal · VM Buyer LLC · MSHA ID 0202656
     Abandoned 2025-03-10
140. Lynx Creek

     Surface metal/non-metal · Lynx Creek Lake Corp · MSHA ID 0200652
     Abandoned 1978-08-24
141. Lynx Creek Gravel Pit

     Surface metal/non-metal · E Z Transmix Inc · MSHA ID 0201202
     Abandoned 1986-06-18
142. Magma Gold Ltd Mc Cabe Division

     Underground metal/non-metal · Magma Gold Ltd · MSHA ID 0202063
     Abandoned 1993-07-06
143. Mahan Materials Portable

     Surface metal/non-metal · Mahan Materials · MSHA ID 0201932
     Abandoned 1986-02-01
144. Mahan Sand & Gravel Materials

     Surface metal/non-metal · Mahan Sand & Gravel Materials · MSHA ID 0202839
     Abandoned 2003-04-30
145. Match Box Mine

     Underground metal/non-metal · Birch Mining Company · MSHA ID 0202094
     Abandoned 1982-11-05
146. Mayer Mining & Material

     Surface metal/non-metal · Mayer Mining & Material · MSHA ID 0202217
     Abandoned 1986-05-08
147. Mc Cracken Pit

     Surface metal/non-metal · Mc Cracken Materials · MSHA ID 0201933
     Abandoned 1988-08-15
148. Metal Recovery Mining Association

     Surface metal/non-metal · Metal Recovery Mining Association · MSHA ID 0202241
     Abandoned 1985-07-30
149. Mica Mule Mine

     Surface metal/non-metal · Arizona Mica Company · MSHA ID 0201923
     Abandoned 1981-04-09
150. Nelson Plant Or Limestone Plant

     Facility metal/non-metal · Flintkote Company · MSHA ID 0201458
     Abandoned 1978-11-24

…and 109 more mines not listed here.

Status and date are as reported to MSHA by the operator. Each mine's own page carries its accident, citation and inspection record.

• Mohave County 5,749
• La Paz County 5,030
• Pima County 4,684
• Gila County 3,401
• Pinal County 3,289
• Maricopa County 3,227
• Cochise County 3,108
• Yuma County 1,743
• Santa Cruz County 1,696
• Coconino County 1,397
• Greenlee County 1,312
• Graham County 656

1. USGS, Consolidated Prospect- and Mine-Related Features from 7.5- and 15-Minute Topographic Quadrangle Maps of the United States (USMIN)
   597,612 point and area features digitized from about 106,350 historical topographic maps published 1886–2006; public domain (CC0). A feature is a map symbol, not a field-verified site, and the map does not say whether it was still worked.
2. USGS Fact Sheet 2025–3003, The Abandoned Mine Inventory of the United States
   States that as of 2025 there is no comprehensive national inventory of abandoned mine features, and that the detailed national database now being built will not be published.
3. OSMRE, Abandoned Mine Land Inventory System (e-AMLIS), public Problems layer
   One row per abandoned mine land problem in a problem area, with its type, funding program and reclamation status; mostly coal mined before the 1977 Surface Mining Control and Reclamation Act. Coordinates are the problem area's.
4. MSHA, Mines dataset (Mine Data Retrieval System)
   Every mine registered with MSHA since the 1970s; a mine reads Abandoned or Abandoned and Sealed when its operator reported that status. Refreshed weekly.
5. US Census Bureau, 2023 cartographic county boundaries (1:500,000)
   Each feature's county is assigned by its coordinates against these boundaries, not copied from the source file.
6. GAO-20-238, Abandoned Hardrock Mines (March 2020)
   Federal agencies had identified at least 140,000 abandoned hardrock mine features on federal land and estimated more than 390,000 more not yet captured in their databases.
7. Abandoned Hardrock Mine Reclamation (AHMR) Program, US Department of the Interior
   The program the USGS inventory is compiled for. Its appropriations and the 674,000 field-confirmed feature count on this page were provided by the program manager, Office of Environmental Policy and Compliance, and are cited with permission (2026-09-08).
8. IMCC-NAAMLP Hardrock AML Report
   Page 48 carries the two figures this page leans on: USGS estimates 633,181 of the 725,690 mine features it recorded from historic topographic maps, 87 percent, are hardrock; and state and federal agencies have submitted more than 724,000 AML features to the national database being built, already more than the historic maps hold. Year-by-year AHMR funding is on page 35.